Nature Communications
·
2024
·Vol. 15
·期 1
·1-14
·
IF 14.7
Zhao Chengkun,Li Xing,Han Xiaowen,Li Zhulian,Bian Shaoquan,Zeng Weinan,Ding Mingming,Liang Jie,Jiang Qing,Zhou Zongke,Fan Yujiang,Zhang Xingdong,Sun Yong
The assembly of oligopeptide and polypeptide molecules can reconstruct various ordered advanced structures through intermolecular interactions to achieve protein-like biofunction. Here, we develop a “molecular velcro”-inspired peptide and gelatin co-assembly strategy, in which amphiphilic supramolecular tripeptides are attached to the molecular chain of gelatin methacryloyl via intra-/intermolecular interactions. We perform molecular docking and dynamics simulations to demonstrate the feasibility of this strategy and reveal the advanced structural transition of the co-assembled hydrogel, which brings more ordered β-sheet content and 10-fold or more compressive strength improvement. We conduct transcriptome analysis to reveal the role of co-assembled hydrogel in promoting cell proliferation and chondrogenic differentiation. Subcutaneous implantation evaluation confirms considerably reduced inflammatory responses and immunogenicity in comparison with type I collagen. We demonstrate that bone mesenchymal stem cells-laden co-assembled hydrogel can be stably fixed in rabbit knee joint defects by photocuring, which significantly facilitates hyaline cartilage regeneration after three months. This co-assembly strategy provides an approach for developing cartilage regenerative biomaterials.
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Journal of Environmental Chemical Engineering
·
2024
·
IF 7.4
Shengguo Zhang,Xiaodong Wang,Qiuye Li,Jianjun Yang
In this paper, V-Mo co-doped akaganeite (β-FeOOH) was prepared by one-pot hydrothermal method and the oxidative desulfurization (ODS) of dibenzothiophene over the catalyst was carefully investigated. 0.07 g (ca. 0.35 wt% of model oil) of catalyst induced 100 % of DBT removal in 60 min with a O/S of 20:1 under 60 °C for the model oils with any of the sulfur contents, 100 ppm, 500 ppm, or 1000 ppm. Moreover, the DBT removal after recycling 4 times is still 100 % and it only declines to 98.04 % in the fifth cycle, which indicates that the catalyst has a good stability and recycling performance. Doping V species in Mo doped β-FeOOH not only initiates a micro-variation in catalyst structure and the resultant more active •OH species but also forms a more stable structure of the catalyst, enabling the catalyst to exhibit a higher ODS reaction rate and a better reusability. The GC-MS analyses demonstrated that the DBT was converted to DBTO 2 by two steps: (1) DBT→ DBTO; (2) DBTO→ DBTO 2 , and the former is the rate-limiting step.
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Sustainable Energy & Fuels
·
2024
·Vol. 8
·期 23
·5428-5436
·
IF 5
Jiangfeng Mou,Jin Hu,Tianyou Chen,Kaizhao Wang,Kaijun Wang,WeiJun Zhang,Shuai Wu,Jin Shi,Pengchong Zhao
Electroreduction of CO2 into fuels and valuable chemicals is an effective way to alleviate the greenhouse effect. However, CO2 is chemically inert owing to the highly stable CO bond. Thus, CO2 activation is recognized as a critical reaction step in the process. As electron transfer to CO2 is commonly accepted as the key step during the activation of CO2, it is crucial to engineer the electronic properties of catalysts to enhance their performance in the electrochemical reduction of CO2. Herein, we prepared a CuGa2 catalyst with oxygen vacancies (O–CuGa2) to effectively improve product selectivity. O–CuGa2 exhibited a current density of 32.9 mA cm−2 with a faradaic efficiency of 82.6% for CO production in a tetrabutylammonium chloride/acetonitrile (Bu4NCl/AN) electrolyte, which is 2.5 times higher than that exhibited by CuGa2. XPS and EPR results indicated that OV concentration in O–CuGa2 is much larger than that in the CuGa2 catalysts. The results of electrokinetic studies indicated that the introduction of OVs facilitate electron transfer to CO2.
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ENVIRONMENTAL POLLUTION
·
2018
·
IF 4.358
Xiaohua Chen,Cai Zhang,Liju Tan,Jiangtao Wang
Cobalt nanoparticles (CoNPs) are being used in wide range of applications and may enter aquatic environments where they pose a potential threat to aquatic organisms. Algal growth inhibition tests were conducted to explore the potential toxicity of CoNPs on marine microalgae, Platymonas subcordiforus, Chaetoceros curvisetus and Skeletonema costatum . This is one of the first time to explore toxicity of CoNPs on marine algae systematically. The results showed that CoNPs induced toxicity on the three algae. The CoNP toxicity on three species microalgae was partly attributed to the Co 2+ released by CoNPs in the f/2 seawater medium. The particle size distribution of CoNPs in seawater revealed that CoNPs were agglomerated in the seawater. The shading effect of CoNPs and scanning electron microscope (SEM) images also showed the aggregating of CoNPs and microalgae, which influenced the photosynthetic utilization and inhibited the growth of the three algae. The order of toxic sensitivity of CoNPs on the three algae was as follows: Platymonas subcordiforus < Chaetoceros curvisetus < Skeletonema costatum .
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POLYMER ENGINEERING AND SCIENCE
·
2018
·Vol. 58
·期 12
·2185-2191
·
IF 1.551
Xuying Nan,Yi Huang,Jianzhong Shao,Huiqiong Yan,Mingshu Wu,Yuhua Yao
Silk peptide used as a co-initiator in type 2 photo-initiator has not been known. In this study, the photoinitiation system is composed of the sensitizer, the synergist and silk peptide with low molecular weight (<3,500), which is used to initiate photopolymerization of common monomer. The same photopolymerization was performed to evaluate the co-initiating ability of four essential amino acids of silk peptide, and of four pentapeptides synthesized using them as substrates, respectively. It was suggested that the glycine residue and alanine residue on silk peptide might be mainly responsible for the co-initiating role. And the co-initiating function might be ascribed to the electron/hydrogen donation of silk peptide. Silk peptide combined with the sensitizer and iodonium salt could also efficiently initiate photo-curing of hydrogel precursors. And due to excellent water solubility of silk peptide, the water absorption of the formed hydrogel could be further improved. These studies will open an opportunity for the application of silk peptide as a biocompatible co-initiator. POLYM. ENG. SCI., 58:2185–2191, 2018. © 2018 Society of Plastics Engineers
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DALTON TRANSACTIONS
·
2025
·
IF 3.3
Xuan Yang,Zesen Yu,Hedong Jiang,Huanhuan Guo,Jian Sun,Jiake Li,Hua Zhu,Yanxiang Wang,Pingchun Guo
Metal–organic frameworks (MOFs) are promising candidates for thermochromic materials. In this study, a hydrogen-bonded 3D porous metal–organic framework, Co-BTC (Co3(BTC)2·12H2O, BTC = 1,3,5-benzenetricarboxylate), exhibited a pink color at room temperature, attributed to the d–d transition of Co2+ ions within the framework, and displayed reversible thermochromic behavior due to alterations in the coordination environment of Co2+ ions. Additionally, Co-BTC/PVB thermochromic film was successfully designed and fabricated as a smart window with a monolayer structure. The window exhibited reversible thermochromic behavior comparable to Co-BTC, with visible transmittance modulation of 10.73%, near-infrared transmittance modulation of 25.87%, and solar transmittance modulation of 12.63%. Compared to a pure PVB window, the smart window reduced indoor temperatures by 5.7 °C in field tests, indicating a significant energy-saving effect. This research presents a potential application for the rational design of MOFs in the development of advanced smart windows.
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BIOSENSORS & BIOELECTRONICS
·
2024
·
IF 10.7
Xu Liang,Chang Liu,Yuecong Hu,Yutong Hua,Junjie Liu,Jintao Deng,Zhiwei Zhu,Yuanhua Shao
Multi-signal-based self-calibrating biosensors have become a research focus due to their superior accuracy and sensitivity in recent years. Herein, the potential-resolved differential ECL immunoassay based on dual co-reactants regulation was developed. Meso-tetra(4-carboxyphenyl)porphyrin (TCPP) functionalized zirconium dioxide (ZrO 2 ) composites (TCPP-ZrO 2 ) was first synthesized using TCPP as the luminophore and ZrO 2 as the enhancer and stabilizer. The organic-inorganic hybrid structure of TCPP-ZrO 2 limits the intramolecular motion of TCPP and accelerates the production of reactive radicals of co-reactants, thus exhibiting excellent ECL intensity and stability. Then, the potential-resolved ECL properties of TCPP-ZrO 2 regulated only by two co-reactants were explored. On this basis, a differential ECL immunosensor was constructed for the sensitive and accurate determination of heart-fatty acid binding protein (hFABP) using 2-(dibutylamino)ethanol modified gold nanoparticles (DBAE@Au) as labels (ECL-1, +1.3 V) and ECL-2 (−1.3 V) triggered by potassium persulfate (K 2 S 2 O 8 ) as the internal reference. In the presence of hFABP, DBAE@Au was captured by the sensing interface to generate ECL-1 and consume K 2 S 2 O 8 , leading to a significant decrease of ECL-2. According to the intensity difference between ECL-2 and ECL-1, the detection of hFABP was achieved with a low detection limit and a wide linear range. The proposed differential ECL immunosensor has been applied in testing human serum samples with satisfactory results, demonstrating its promising applications for clinical diagnosis.
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CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Fei Liu,Haoxuan Zhang,Jingjing Qu,Changlai Yuan,Xiao Liu,Yuntao Huang,Qihan Chen,Letian Liu
To compensate for the large positive temperature coefficient of resonant frequency (τ f ) in a typical ABO 3 -type perovskite-structured Sm 0.5 Na 0.5 TiO 3 ceramic material, the laminated Sm 0.5 Na 0.5 TiO 3 -Sm 0.5 Li 0.5 TiO 3 (SNT-SLT) microwave dielectric ceramic system is designed with the tunable layer mass fractions. Among all the compositions of x gSm 0.5 Na 0.5 TiO 3 -(2– x )gSm 0.5 Li 0.5 TiO 3 ( x = 0.8, 0.9, 1.0, 1.1, and 1.2) and the sintered temperatures (1200–1400 °C), the sample with 0.9 g SNT and 1.1g SLT sintered at 1200 °C exhibits a near-zero τ f ≈ −1.1 ppm/°C, while maintaining a relatively higher ε r ≈ 69.6 and Q×f ≈ 3043 GHz in these SNT-SLT ceramics. Wherein, the most noteworthy characteristic results show that the interfacial diffusion of A-site cations leads to the formation of an inhomogeneous solid-solution region, which becomes more pronounced at the higher sintering temperatures. Additionally, the relatively higher sintered temperatures (1250–1400 °C) can intensify the interfacial diffusion and solid-solution formation, which ultimately results in a decrease in the Q×f values. The microwave dielectric measurements in the 3–4 GHz band reveal that the τ f values vary approximately linearly with the increasing SNT content. This study presents a promising strategy for the development of the advanced bilayer ceramic systems and highlights their potential in the next-generation 5G/6G communication devices.
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JOURNAL OF HAZARDOUS MATERIALS
·
2025
·
IF 11.3
Pengxi Li,Wangjing Zhai,Bingxue Li,Qiqi Guo,Yujue Wang,Yucheng Gu,Li Zheng,Fanrong Zhao,Xueke Liu,Peng Wang,Donghui Liu
Glyphosate, the most widely utilized herbicide, frequently coexists with nitrogen fertilizers such as urea in soil environments. Nitrogen cycling is a key process for maintaining soil ecological functions and nutrient balance. However, the effects of co-exposure to glyphosate and urea on this process have remained unclear. This study investigated the impact of co-exposure to glyphosate (10 mg/kg) and urea (260.87 or 347.83 mg/kg, equivalent to 180 or 240 kg N/ha) on soil nitrogen cycling through a 98-day incubation experiment. Soil nutrients, enzyme activities, bacterial community structure, and functional genes were analyzed. NH 4 + -N and NO 3 - -N contents significantly decreased by 44.70–53.43 % and 36.74–49.12 %, respectively. Co-exposure reduced bacterial diversity and altered nitrogen cycling genes, decreasing nifH while increasing amoA and nosZ , indicating reduced nitrogen input potential and increased inorganic nitrogen loss. Enzyme analysis confirmed excessive activation of nitrification and denitrification, lowering nitrogen availability. Partial least squares structural equation modeling (PLS-SEM) showed co-exposure indirectly decreased NH 4 + -N and NO 3 - -N via enhanced nitrate and nitrite reductase activities. The study highlights the complex interactions between herbicides and fertilizers in soil environments and underscores the need for further research to understand the implications for wider soil health and crop production in agriculture systems.
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Nature Communications
·
2022
·Vol. 13
·期 1
·1-9
·
IF 17.694
Zhang He-Shan,Dong Xue-Mei,Zhang Zi-Cheng,Zhang Ze-Pu,Ban Chao-Yi,Zhou Zhe,Song Cheng,Yan Shi-Qi,Xin Qian,Liu Ju-Qing,Li Yin-Xiang,Huang Wei
Neuromorphic electronics, which use artificial photosensitive synapses, can emulate biological nervous systems with in-memory sensing and computing abilities. Benefiting from multiple intra/interactions and strong light-matter coupling, two-dimensional heterostructures are promising synaptic materials for photonic synapses. Two primary strategies, including chemical vapor deposition and physical stacking, have been developed for layered heterostructures, but large-scale growth control over wet-chemical synthesis with comprehensive efficiency remains elusive. Here we demonstrate an interfacial coassembly heterobilayer films from perylene and graphene oxide (GO) precursors, which are spontaneously formed at the interface, with uniform bilayer structure of single-crystal perylene and well-stacked GO over centimeters in size. The planar heterostructure device exhibits an ultrahigh specific detectivity of 3.1 × 10 13 Jones and ultralow energy consumption of 10 −9 W as well as broadband photoperception from 365 to 1550 nm. Moreover, the device shows outstanding photonic synaptic behaviors with a paired-pulse facilitation (PPF) index of 214% in neuroplasticity, the heterosynapse array has the capability of information reinforcement learning and recognition.
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ChemCatChem
·
2025
·
IF 3.9
Hongsen Dong,Xiao Lin,Yan Zhao,Daniil I. Kolokolov,Xi Chen,Shipeng Ding
Tunning the metal-support interaction is a common strategy to regulate the electro and geometric structure of supported metal; However, most of supports were limited to oxides, and how the carbides tune the activity of supported metal in CO2 hydrogenation is still elusive. Herein, Pt nanoparticles dispersed on carbides were fabricated and examined in CO2 hydrogenation to CO. Among the carbides (ZrC, SiC, WC and TiC), Pt nanoparticles supported on ZrC showed the best catalytic activity, with the CO2 conversion of up to around 37% and 99% selectivity towards CO; it also displayed decent stability in the time-on-stream for 60 hours. The mechanistic study indicated the strong metal-carbide electronic interaction enabled the electron transfer from the Pt nanoparticle to ZrC in the Pt/ZrC catalysts. The modulation of Pt electronic structure tunned the adsorption configuration of CO2 and H2, thus enhancing the catalytic performance of Pt nanoparticles in CO2 hydrogenation to CO. This work demonstrates the importance of carbides in modulating the electronic structure of supported metals.
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Carbon Capture Science & Technology
·
2025
·
IF 10.5
Zeyou Meng,Xin Ye,Xiao Sun,Jiahao Li,Nan Wang,Zhen Wang,Gang Xie
To address the two major challenges of low active site utilization and amine loss in traditional amine-functionalized CO 2 adsorbent, this study proposed a synergistic strategy of “hierarchical pore channels-polarity regulation”. Using hierarchical mesoporous silica (HMS) as the support, a dual-functional modification approach combining aminopropyltrimethoxysilane (APTMS) and butyltrimethoxysilane (BTMS) grafting with tetraethylenepentamine (TEPA) impregnation was employed to construct an efficient CO 2 adsorption system with dual active sites. APTMS and BTMS were alternately grafted onto the HMS via siloxane bonds, resulting in a structure with varying polarities. The strong polarity of TEPA interacts simultaneously with the terminal groups of APTMS and BTMS, facilitating the uniform dispersion of TEPA within the material. The optimized HMS-AB-70T adsorbent exhibited a dynamic CO 2 adsorption capacity of 5.34 mmol g −1 at 70°C, with a reduction of 9.8% in adsorption capacity after 10 cycles. In a humid environment, its performance was further enhanced to 5.89 mmol g −1 . The CO 2 adsorption mechanism was revealed by in situ infrared spectroscopy and kinetic analysis, involving the formation of carbamate and bicarbonate species. By adjusting the hydrophilic-lipophilic balance of the P123 template, a hierarchical mesoporous structure of HMS (∼6 nm and ∼10 nm) was successfully achieved, promoting rapid mass transfer and providing abundant adsorption sites. This strategy offers a novel molecular-level approach for the design of efficient and stable CO 2 adsorbents.
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